<ol xml:space="preserve">
<li>Choose the desired 
  
<a href="../../doc/Line_en.html#type">line type</a> in the options
toolbar.</li>
  
<li>Enter the relative angle in the options tool bar.</li>
  
<li>Click the existing base entity.</li>
  
<li>Place the line with the mouse or enter a coordinate in the command
line.</li>
</ol>
